The invention discloses ultrasonic beauty instrument comprising a
surface cover, a body, a shell of a bottom cover and an inner
core component accommodated in the shell, wherein, the body comprises an
elbow, and is divided into an upper section and a lower section by the
elbow. The ultrasonic beauty instrument is characterized in that the body is an integral swan neck, the inner
core component comprises an upper part positioned in the upper section of the body and a lower part positioned in the lower section of the body; the upper part includes a tabulate fixing frame which is fixedly connected to a motor and corresponding fixing accessories, and the end of the upper part has a hook; the lower part includes a tabulate fixing plate which is fixed with the circuit boards and the like, and the top of the lower part has a
lantern ring; the lower section also comprises a guide slot which is parallel to the axis of the lower section, the lower part is in sliding fit with the guide slot; the hook crosses and hooks the
lantern ring; a locking piece is arranged between the lower part and the bottom cover; and after the lower end of the lower part is fixed with the bottom cover by the locking piece, the upper part is tensioned and fixed by the
lantern ring through the hook, thus the whole inner
core component is fixed in the body properly. The ultrasonic beauty instrument has less fittings, less fixed parts and simple assembling procedures.